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A186107
Numerator of the frequency of the n-th dropping time in the Collatz iteration.
3
1, 1, 1, 1, 3, 7, 3, 15, 85, 173, 119, 961, 663, 8045, 17637, 51033, 54475, 312455, 663535, 950235, 5936673, 1684037, 39993895, 87986917, 128989251, 205059181, 949737339, 2861515293, 400296173, 19018424205
OFFSET
1,5
COMMENTS
The possible dropping times are in A020914. The denominators are in A186108. The cumulative frequency of the dropping time is A186109(n)/A186110(n).
FORMULA
a(n) = numerator of A186009(n) / 2^A020914(n-1).
EXAMPLE
The frequencies are 1/2, 1/4, 1/16, 1/16, 3/128, 7/256, 3/256, 15/2048, 85/8192,....
CROSSREFS
Cf. A126241 (dropping times)
Sequence in context: A205723 A088837 A201385 * A282160 A338266 A019158
KEYWORD
nonn,frac
AUTHOR
T. D. Noe, Feb 12 2011
STATUS
approved